How do my plants look?

Hey guys, I took a picture of my friends plants, and we weren't sure if it was normal for the future bud sites to turn the light green almost yellow looking color they are when beginning to flower. They have been on a 12/12 for a little over a week, and was just wondering of this is normal. The back one is a white widow bent over, and the two front ones are an unknown purple strain. Any info would be appreciated, thanks.

Im sorry but I dont have an answer for you. I was wondering how your fan set up is working - I am about to do something along those lines. Nice plants by the way

That can only mean one thing, Male of female. LOL You wont know until you KNOW.

I see that your humidity is at 47%. For the flowering stage, you should try to get your humidity down to about 35%. As the plant matures and the buds develop, it becomes more susceptible to molds and fungus. Keeping the humidity lower is a good, easy way to fend them off.

Thanks for the advice rolla